apollo.colocall.eu has no MX records.
Question and response
Question
dig apollo.colocall.eu. MX
Answer
The response has no answer records.
Authority
colocall.eu. 86400 SOA ns1.colocall.net. hostmaster.colocall.eu. 2025110800 28800 7200 604800 86400
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0